DE642599C - Procedure for exploring oil deposits - Google Patents
Procedure for exploring oil depositsInfo
- Publication number
- DE642599C DE642599C DEA74496D DEA0074496D DE642599C DE 642599 C DE642599 C DE 642599C DE A74496 D DEA74496 D DE A74496D DE A0074496 D DEA0074496 D DE A0074496D DE 642599 C DE642599 C DE 642599C
- Authority
- DE
- Germany
- Prior art keywords
- procedure
- natural gas
- oil deposits
- boreholes
- degassing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 18
- 239000003345 natural gas Substances 0.000 claims description 9
- 238000007872 degassing Methods 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 5
- 150000002430 hydrocarbons Chemical class 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000003209 petroleum derivative Substances 0.000 claims description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 8
- 238000005070 sampling Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- G01V9/007—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by detecting gases or particles representative of underground layers at or near the surface
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Es ist ein Verfahren zum Aufsuchen von Erdöllagerstätten bekannt, bei dem aus systematisch
verteilten Bohrlöchern Erdgasproben entnommen und diese z. B. durch katalytische
Verbrennung an einem glühenden Platindraht auf ihren Gehalt an Kohlenwasserstoff und
gegebenenfalls Erdölderivaten .untersucht werden. Bisher hat man dieses bekannte- Verfahren
in der Weise angewendet,. -daß ' man das sich in den Bohrlöchern ansammelnde
Erdgas 'entnahm und untersuchte. Eine solche Entnahme der Erdgasproben ist jedoch in.
vieler Beziehung nachteilig. Es hat sich gezeigt, daß das sich in den Bohrlöchern ansammelnde
Erdgas Kohlenwasserstoffe nur in verhältnismäßig wenigen Fällen,' etwa auf«
Erdrissen, Spalten, Verwerfungen u. dgl., in meßbarer Konzentration 'enthält. Außerdem
führt die bekannte Art der Gasprobenentnahme oft deshalb zu Fehlschlüssen, weil
Sumpfgase u. dgl. ebenfalls brennbare Kohlenwasserstoffe, insbesondere CH4, enthalten, die
mit Erdöllagerstätten nichts zu tun haben.
Es läßt sich bei der beschriebenen Art der Gasprobenentnahme außerdem nicht vermeiden,
daß sich das Erdgas durch Diffusion oder durch eine beim Absaugen entstehende Strömung mit der Luft in unbestimmbarer
Weise mischt, so daß, wenn überhaupt, dann nur recht unsichere Meßwerte bei der Unter-■
suchung der entnommenen Proben erhalten werden.There is a method for exploring oil reservoirs known in which natural gas samples are taken from systematically distributed boreholes and these z. B. investigated by catalytic combustion on a glowing platinum wire for their content of hydrocarbons and possibly petroleum derivatives. So far this known method has been used in the manner. -that 'the natural gas that collects in the boreholes' was taken and examined. However, taking the natural gas samples in this way is disadvantageous in many respects. It has been shown that the natural gas that collects in the boreholes only contains hydrocarbons in relatively few cases, for example on cracks, crevices, faults and the like, in a measurable concentration. In addition, the known type of gas sampling often leads to false conclusions because swamp gases and the like also contain flammable hydrocarbons, in particular CH 4 , which have nothing to do with petroleum deposits.
With the type of gas sampling described, it is also unavoidable that the natural gas mixes with the air in an indeterminate manner through diffusion or through a flow created during suction, so that, if at all, then only very uncertain measured values at the bottom Search of the samples taken can be obtained.
Die Erfindung bezweckt, die bekannte Art der Gasprobenentnahme durch eine bessere zu ersetzen. Die Erfindung besteht darin, bei dem oben geschilderten Verfahren zum AufsuchSn von Erdöllagerstätten die zur systematischen Untersuchung erforderlichen Erdgasproben durch Entgasen von aus den Bohrlöchern entnommenen Biohrkernen zu gewinnen.The invention aims to improve the known type of gas sampling substitute. The invention consists in the above-described method for AufsuchSn the natural gas samples required for systematic analysis of oil reservoirs to be obtained by degassing of bio-ear cores removed from the boreholes.
Es ist zwar an sich bekannt, den Gasgehalt fester Körper dadurch zu bestimmen, daß man den zu untersuchenden Stoff mittels chemischer oder physikalischer Verfahren entgast. Eine solche Entgasung von Gesteinen hat man jedoch bisher nur in ganz anderem Zusammenhange benutzt. Wendet man diese Entgasung dazu an, um eine neue Art der Gasprobenentnahme für die Auffindung von Erdöllagerstätten zu erhalten, so vermeidet man damit die schon geschilderten Fehlerquellen, die durch ungewollte Entnahme von Sumpfgas oder durch unbestimmte Mischung ■ des Erdgases mit Luft o. dgl. entstehen können.It is known per se to determine the gas content of solids by that the substance to be examined is degassed by means of chemical or physical processes. However, such degassing of rocks has only been used in completely different contexts so far. If you turn this Degassing to provide a new way of gas sampling for the detection of To preserve oil deposits, one avoids the sources of error already described, caused by unintentional removal of swamp gas or by indeterminate mixing ■ of the natural gas with air or the like. Can arise.
Darüber hinaus hat sich aber gezeigt, daß die durch Entgasung von Bohrkernteilen gewonnenen Proben selbst dann noch Kohlen-Wasserstoffe in meßbarer Konzentration enthielten, wenn die aus dem gleichen Bohrloch 6η unmittelbar entnommenen Gasproben keinen Meßeffekt mehr ergaben. ·In addition, it has been shown that the obtained by degassing drill core parts Samples even then contained hydrocarbons in measurable concentrations, if the from the same borehole 6η gas samples taken directly no longer resulted in a measurement effect. ·
Es hat sich gezeigt, daß in der Nähe von Erdöllagerstätten häufig auch oberflächen-It has been shown that in the vicinity of oil deposits, surface
nahes Gestein durch ölspuren imprägniert ist. Bei dem bisher bekannten Verfahren
waren derartige Ölspuren nicht ohne weiteres, nachweisbar. Entgast man jedoch
S flächennahe Bohrkerne oder
dann sind in den gewonnenen
in solchem Falle unmittelbare Destillationsprodukte des Rohpetroleums vorhanden, die
für das Aufsuchen von ÖUagerstätten weitere äußerst wichtige Hinweise geben.nearby rock is impregnated by traces of oil. With the previously known method, such traces of oil were not readily detectable. But you degas
S drilling cores close to the surface or
then are in the won
in such a case direct distillation products of the crude petroleum are available, which give further extremely important information for the search for oil deposits.
Die Entgasung der Bohrkernproben kann auf beliebige, an sich bekannte Weise erfolgen, z. B. durch Absaugen im Vakuum, durch Erhitzen o. dgl.The degassing of the drill core samples can take place in any known manner, z. B. by suction in a vacuum, by heating o.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA74496D DE642599C (en) | 1934-11-08 | 1934-11-08 | Procedure for exploring oil deposits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA74496D DE642599C (en) | 1934-11-08 | 1934-11-08 | Procedure for exploring oil deposits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE642599C true DE642599C (en) | 1937-03-10 |
Family
ID=6946174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA74496D Expired DE642599C (en) | 1934-11-08 | 1934-11-08 | Procedure for exploring oil deposits |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE642599C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0415672A3 (en) * | 1989-08-24 | 1992-09-09 | Amoco Corporation | Method for exploring the earth's subsurface |
-
1934
- 1934-11-08 DE DEA74496D patent/DE642599C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0415672A3 (en) * | 1989-08-24 | 1992-09-09 | Amoco Corporation | Method for exploring the earth's subsurface |
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