WO2008100176A1 - Procédé de développement de gisements d'hydrocarbures (et variantes) - Google Patents
Procédé de développement de gisements d'hydrocarbures (et variantes) Download PDFInfo
- Publication number
- WO2008100176A1 WO2008100176A1 PCT/RU2007/000607 RU2007000607W WO2008100176A1 WO 2008100176 A1 WO2008100176 A1 WO 2008100176A1 RU 2007000607 W RU2007000607 W RU 2007000607W WO 2008100176 A1 WO2008100176 A1 WO 2008100176A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- horizontal
- casing
- reservoir
- pseudo
- well
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 16
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 16
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 14
- 230000035508 accumulation Effects 0.000 title abstract 4
- 238000009825 accumulation Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 239000011555 saturated liquid Substances 0.000 claims abstract 4
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 239000004568 cement Substances 0.000 claims description 10
- 239000003380 propellant Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 5
- 238000010924 continuous production Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 15
- 238000000605 extraction Methods 0.000 abstract description 7
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000754 repressing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
Definitions
- the invention relates to the oil and mining industries and can be used at any stage of the extraction of hydrocarbons both in continuous production and cyclical.
- Prototype - a method of developing hydrocarbon deposits using a production well with a horizontal wellbore (HS) in the reservoir - the reservoir has been known for more than 50 years and is generally a more efficient way [1] than developing a hydrocarbon reservoir with a producing well with a vertical wellbore (BC) in the reservoir .
- This is mainly due to a longer length and, consequently, a larger area of the opened reservoir, directly susceptible to depression than the area of a perforated well with a vertical well, which increases the production flow into wells with a horizontal well.
- this non-uniformity is enhanced by the anisotropy of the permeability of the reservoir in any direction, as well as the presence of cracks of various sizes and directions in the reservoirs.
- the technical task of the invention is to increase economic efficiency, increase stability and ensure the manageability of the method of development
- SUBSTITUTE SHEET (RULE 26) oil reservoirs using production and injection wells with a horizontal and / or pseudo-horizontal borehole in the reservoirs, preventing the oil deposits from dissolving and preventing the formation of stagnant zones of oil, as well as improving the efficiency of gas production by wells from oil and gas deposits.
- This goal is achieved by a set of improvements in several aspects of the production process by a known method: a change in the arrangement of wells with a horizontal or pseudo-horizontal trunk, as well as modes and tactics of their operation.
- a casing string is introduced into an open horizontal or pseudo-horizontal well bore. This action is performed either immediately when the well has been drilled during the casing, the diameter of the casing in this case is kept from the mouth to the end of the bottom hole, or when the well with a horizontal or pseudo-horizontal trunk is already equipped with a cemented casing to the beginning of the horizontal or pseudo-horizontal bore, then through the volume of the existing casing pass another casing with a smaller diameter and place it from the wellhead to the end of the bottom.
- the well is drilled above the reservoir of an installed casing with a vertical well, then a new direction of the well is drilled from it and a horizontal or pseudo-horizontal wellbore is created in the reservoir, after which a drill is drilled from the wellhead through the upper part oh casing is introduced to the end face in the horizontal or psevdogorizontalny wellbore casing of smaller diameter than the drilled.
- the subsequent arrangement of the injected casing in a horizontal or pseudo-horizontal wellbore is performed identically for all three cases considered.
- the casing string inserted into a horizontal or pseudo-horizontal wellbore is cemented from the outside, in a tapered pipe at the end of this column, which facilitated the posting of this column along a horizontal or pseudo-horizontal wellbore, creating a cement plug, and then evenly perforating this casing in the horizontal zone
- SUBSTITUTE SHEET (RULE 26) or pseudo-horizontal wellbore.
- Using cementing and dispersed uniform perforation of the casing creates a more even distribution of depression along a horizontal or pseudo-horizontal borehole of the production well than in a horizontal or pseudo-horizontal wellbore, but without a casing in it, and therefore more evenly extract the products from the hydrocarbon reservoir being developed , prevent a local, massive breakthrough of a fluid in any place in a well with a horizontal or pseudo horizontal even if there is a super collector or cracks.
- thermochemically prepared gas-saturated propellant for example, water
- the negative impact of fractures in the reservoir on the extraction of products and its watering reduce the thus equipped horizontal or pseudo-horizontal shafts of injection and production wells by parallel arrangement between them, but across the predominant direction of these cracks.
- the volume of the liquid propellant is pumped in a volume equal to the volume of the extracted fluid from the formation, with a volumetric rate of injection of the displacer that does not lead to hydraulic fracturing. All these measures prevent the dissolution of oil deposits and the formation of stagnant zones with oil in the deposits.
- SUBSTITUTE SHEET (RULE 26) the wellbore, without touching the cement plug, enter the pipe with a cone-shaped plug at its end and holes in the wall of the end section of this pipe in front of the plug. Selection received through the perforation in the casing production is carried out through these holes in the pipe, and through the gap between this pipe and the casing in front of the perforated area, that is, support the depression from opposite sides of the perforated area.
- a heater is introduced into the pipe from the wellhead to the holes in the pipe, thereby increasing reservoir energy and preventing an increase in oil viscosity in the reservoir, as well as particles of hydrates, the release of paraffin and their settling both in the pores of the reservoir and on the wall of the casing and all parts in it in the production well support or create gas ftny mode in it.
- thermochemically prepared displacer and a uniform selection of products from the reservoir using wells with a horizontal or pseudo-horizontal bore, equipped with casing strings, which are equipped with an additional pipe and heater in the zone of a horizontal or pseudo-horizontal borehole, create conditions for increasing flow rate and oil recovery factor (CIN) from the collector, since this uniformity increases as the coverage ratio (K ox ) by displacing output from the volume of the collector This prevents the formation of stagnant zones, as well as increases the coefficient of displacement (K in ). of oil from the pores of the collector, treated thermochemically prepared displacer (micro-level), and the product of these coefficients, according to the formula of academician A.P. Krylov [3] is equal to CIN:
- SUBSTITUTE SHEET (RULE 26) For separate, enhanced gas extraction with condensate from oil, production and injection wells are used, equipped with a sectional column introduced from the wellhead to the end of the bottomhole, made in the form of a pseudo-horizontal wellbore in the gas zone of the reservoir, turning into a horizontal wellbore in the oil zone of the reservoir.
- the section in the pseudo-horizontal barrel produces gas with condensate, and the section extracts oil in the horizontal wellbore and, respectively, separately, gas and saturated thermochemically prepared displacer (for example, water) are injected into injection zones in different reservoir zones.
- gas and saturated thermochemically prepared displacer for example, water
- sectional production and injection casing from the non-section considered is different in that in the area of the pseudo-horizontal wellbore between the pipe inserted to the end of the face and the casing column there is a shortened pipe between which the packer and the casing set the packer in the pseudo-horizontal trunk than in the section of the casing and between the casing and between the casing and the casing column. into two sections.
- the solution of the stated technical problem is carried out by an effective dual control of the extraction of products: both a production and an injection well.
- a well under construction with a horizontal or pseudo-horizontal barrel or already constructed, but with a casing installed only before the beginning of the horizontal or pseudo-horizontal trunk ⁇ or into a well with a vertical well in the reservoir, which is converted into a well with a horizontal or pseudo horizontal trunk, either production or injection well, from the mouth enter the casing for the entire length of the well.
- a depression is created in the production well and, accordingly, repression in the injection well from two sides of the casing perforated columns in the zone of a horizontal wellbore and from the mouth - in the zone of a pseudo-horizontal wellbore; inside the smaller diameter of the pipe from
- the number and size of the perforation holes in the column, as well as the uniform depression created in the production well and uniform repression in the injection well, double control production of oil and oil, and the location of horizontal and / or pseudo-horizontal wells of the production wells parallel to the corresponding injection well stems, but across the preferred direction fractures in the reservoir ensure the reliability and stability of the realization of the advantages of this dual control, which creates words to increase the CIN and to reduce the number of wells in the hydrocarbon deposit being developed.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention concerne des procédés de développement de gisements d'hydrocarbures, à partir de n'importe quel stade de leur extraction. Elle permet d'assurer le pilotage de l'extraction d'hydrocarbures au moyen de puits avec un canal pseudo-horizontal et/ou horizontal dans une couche de production, d'obtenir un coefficient élevé d'extraction de pétrole, d'éviter la déstructuration de gisements pétroliers et d'empêcher la formation de zones de stagnation. Selon l'invention, le procédé de développement de gisements d'hydrocarbures par l'exploitation des puits d'extraction et d'injection possédant un canal pseudo-horizontal ou horizontal qui s'ouvre dans la couche de production; le procédé est amélioré par la prolongation de la colonne de tubages jusqu'à l'extrémité desdits canaux, la cimentation de toute la colonne de tubages à l'extérieur et la distribution régulière de la perforation le long de la partie de la colonne dans l'intégralité du canal horizontal et/ou dans une partie du canal pseudo-horizontal du puits. On forme une dépression ou une répression régulière le long de la partie perforée des deux côtés dans la zone pétrolière, dans les colonnes de tubage des puits d'extraction ou d'injection, respectivement. On dispose les canaux pseudo-horizontal et/ou horizontaux des puits d'extraction et des puits d'injection en construction parallèlement entre eux, mais transversalement à la direction prépondérante des fissures dans la couche de production. On extrait la fraction de pétrole séparément du condensat de gaz et du gaz à partir du collecteur et l'on y injecte un volume déterminé d'un fluide de remplacement, préparé thermochimiquement et saturé de gaz, dans un volume égale au volume du liquide extrait et à une vitesse volumique qui ne provoque pas de fracturation hydraulique de la couche de production dans la zone pétrolière; on injecte également du gaz réchauffé dans une zone de gaz de collecteur à une température supérieure à la température dans la couche. L'invention s'utilise dans la production ininterrompue ou cyclique du produit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2007105125/03A RU2342520C2 (ru) | 2007-02-12 | 2007-02-12 | Способ разработки залежей углеводородов (варианты) |
| RU2007105125 | 2007-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008100176A1 true WO2008100176A1 (fr) | 2008-08-21 |
Family
ID=39690316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2007/000607 WO2008100176A1 (fr) | 2007-02-12 | 2007-11-06 | Procédé de développement de gisements d'hydrocarbures (et variantes) |
Country Status (3)
| Country | Link |
|---|---|
| EA (1) | EA012022B1 (fr) |
| RU (1) | RU2342520C2 (fr) |
| WO (1) | WO2008100176A1 (fr) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010043239A1 (fr) * | 2008-10-15 | 2010-04-22 | Tctm Limited | Compositions de réduction de la viscosité du pétrole par émission de gaz pour stimuler la couche productive d’un gisement de pétrole |
| CN105986797A (zh) * | 2015-02-13 | 2016-10-05 | 中国石油天然气股份有限公司 | 水平井的分段压裂方法 |
| CN106368647A (zh) * | 2016-09-27 | 2017-02-01 | 中国石油天然气股份有限公司 | 确定水平井调剖剂用量的方法 |
| WO2017037746A3 (fr) * | 2015-09-02 | 2017-04-13 | Indian Institute Of Technology Madras | Procédé de mise en œuvre de fracturation inverse de puits de pétrole et de gaz |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2738145C1 (ru) * | 2020-04-22 | 2020-12-08 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Способ разработки мощной низкопроницаемой нефтяной залежи |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445574A (en) * | 1980-03-24 | 1984-05-01 | Geo Vann, Inc. | Continuous borehole formed horizontally through a hydrocarbon producing formation |
| RU2286445C1 (ru) * | 2006-01-19 | 2006-10-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Способ разработки залежи высоковязкой нефти или битума |
-
2007
- 2007-02-12 RU RU2007105125/03A patent/RU2342520C2/ru active
- 2007-11-06 WO PCT/RU2007/000607 patent/WO2008100176A1/fr active Application Filing
-
2008
- 2008-02-05 EA EA200800379A patent/EA012022B1/ru unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445574A (en) * | 1980-03-24 | 1984-05-01 | Geo Vann, Inc. | Continuous borehole formed horizontally through a hydrocarbon producing formation |
| RU2286445C1 (ru) * | 2006-01-19 | 2006-10-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Способ разработки залежи высоковязкой нефти или битума |
Non-Patent Citations (2)
| Title |
|---|
| GRIGORIAN A.M.: "Vskrytie plastov mnogozaboinymi i gorizontalnymi skazhinami", MOSCOW, NEDRA, 1969, pages 34, 59 * |
| LOGVINENKO S.V.: "Tsementirovanie neftyanykh i gasovykh skvazhin", MOSCOW, NEDRA, 1986, pages 35 - 37 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010043239A1 (fr) * | 2008-10-15 | 2010-04-22 | Tctm Limited | Compositions de réduction de la viscosité du pétrole par émission de gaz pour stimuler la couche productive d’un gisement de pétrole |
| US8387697B2 (en) | 2008-10-15 | 2013-03-05 | Tctm Limited | Gas evolving oil viscosity diminishing compositions for stimulating the productive layer of an oil reservoir |
| EA020983B1 (ru) * | 2008-10-15 | 2015-03-31 | Стоун Уолл С.Р.О. | Газовыделяющие композиции, уменьшающие вязкость нефти, для возбуждения продуктивного пласта нефтяного коллектора |
| US9410407B2 (en) | 2008-10-15 | 2016-08-09 | Viscos Energy Services Ag | Gas evolving oil viscosity diminishing compositions for stimulating the productive layer of an oil reservoir |
| CN105986797A (zh) * | 2015-02-13 | 2016-10-05 | 中国石油天然气股份有限公司 | 水平井的分段压裂方法 |
| CN105986797B (zh) * | 2015-02-13 | 2018-12-25 | 中国石油天然气股份有限公司 | 水平井的分段压裂方法 |
| WO2017037746A3 (fr) * | 2015-09-02 | 2017-04-13 | Indian Institute Of Technology Madras | Procédé de mise en œuvre de fracturation inverse de puits de pétrole et de gaz |
| CN106368647A (zh) * | 2016-09-27 | 2017-02-01 | 中国石油天然气股份有限公司 | 确定水平井调剖剂用量的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2007105125A (ru) | 2008-09-10 |
| RU2342520C2 (ru) | 2008-12-27 |
| EA200800379A3 (ru) | 2008-10-30 |
| EA012022B1 (ru) | 2009-06-30 |
| EA200800379A2 (ru) | 2008-08-29 |
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