WO2007006239A1 - Procédé d’extraction de pétrole résiduel se servant de puits horizontaux pour injecter un agent de commande de profil afin de bloquer le canal d’injection d’eau du réservoir de pétrole - Google Patents

Procédé d’extraction de pétrole résiduel se servant de puits horizontaux pour injecter un agent de commande de profil afin de bloquer le canal d’injection d’eau du réservoir de pétrole Download PDF

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Publication number
WO2007006239A1
WO2007006239A1 PCT/CN2006/001678 CN2006001678W WO2007006239A1 WO 2007006239 A1 WO2007006239 A1 WO 2007006239A1 CN 2006001678 W CN2006001678 W CN 2006001678W WO 2007006239 A1 WO2007006239 A1 WO 2007006239A1
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WO
WIPO (PCT)
Prior art keywords
well
oil
horizontal well
profile control
horizontal
Prior art date
Application number
PCT/CN2006/001678
Other languages
English (en)
Chinese (zh)
Inventor
Shengcun Wang
Original Assignee
Shengcun Wang
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shengcun Wang filed Critical Shengcun Wang
Publication of WO2007006239A1 publication Critical patent/WO2007006239A1/fr

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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
    • E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20—Displacing by water
    • 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

Definitions

  • the invention belongs to petroleum exploitation, and particularly relates to a method for sealing the remaining oil of the oil layer water injection channel by using a horizontal well injection profile control agent.
  • the horizontal well injection profile control agent of the present invention blocks the oil layer of the oil layer to extract residual oil in order to overcome the deficiencies of the prior art.
  • a method of using the horizontal well profile control to seal the water injection channel to extract the remaining oil is envisaged.
  • the method encapsulates the water injection channel by injecting a profile control agent into the water injection channel by a horizontal well group perpendicular to the mainstream water line, so that the injection water is forced to change the flow direction to wash the remaining oil in the detention area, thereby achieving the purpose of water shutoff and oil recovery. .
  • the technical solution adopted by the horizontal well injection profile control agent for sealing the oil layer water injection channel of the present invention is as follows: In the injection and drainage row of the oil layer plane geological structure, the horizontal well group perpendicular to the mainstream water line direction is used. Inject the profile control agent and block the water injection channel.
  • the production well pattern laid out by the five-point method is used to drill a horizontal well group perpendicular to the mainstream water line between the well rows, and the profile control agent is injected through the well group to block the water injection passage between the remaining oil blocks. . Then, the vertical well row on one side of the horizontal well is changed to the water injection well row, and the vertical well row on the other side is changed to the oil production well row.
  • the horizontal profile control injection well group can also be utilized to extract the remaining oil.
  • the horizontal well a is injected into the profile control agent
  • the horizontal well b is used as the injection well
  • the horizontal well c is used as the production well
  • the water injection through the b well the ablation of the a well is blocked
  • the production of the c well is a.
  • the remaining oil in the well is rushed to the c well; then the horizontal profile c is injected into the profile control agent, the horizontal well a is changed to the injection well, and the horizontal well d is changed to the sputum oil well to mine the remaining oil at the c well;
  • the alternating function of the flat well function is to produce the remaining oil at each horizontal well.
  • the profile control agent is: a high molecular weight organic polymer such as a high molecular weight polyallyl ammonium.
  • the horizontal well injection profile control agent of the invention blocks the remaining oil of the oil layer water injection channel, has a reasonable design, low investment and high benefit.
  • Figure 1 is a schematic diagram of a five-point layout of a production well network.
  • FIG. 2 is a schematic diagram of the five-point residual oil of the horizontal profile control well group in the horizontal well profiled well group of the method for sealing the remaining oil of the oil layer water injection channel by the horizontal well injection profile control agent of the present invention.
  • Fig. 3 is a schematic view showing the remaining oil produced by the horizontal profile injection injection well group of the horizontal well injection profile control agent for sealing oil layer water injection in the present invention.
  • the horizontal section of the horizontal well can reach 1000 meters in length.
  • the invention utilizes a production well network laid out by a five-point method, and drills a horizontal well group in a remaining oil-rich block between the well rows, and injects a profile control agent through the horizontal well (a shallow profile radius of 5 meters can block 10
  • the thick layer of oil blocks the water injection channel between the remaining oil blocks, and then changes the vertical well row on one side of the horizontal profile control well to the injection well row, and the vertical well row on the other side to the production well row, as shown in Figure 2. Shown.
  • the water injection channel will be blocked by the profile control agent.
  • the injected water can only flow in the direction indicated by the arrow in Figure 2. The result of the flow is to flush the crude oil in the remaining oil enrichment area to the production well to achieve the purpose of water shutoff and oil recovery.
  • the horizontal oil profile injection well group can also be used to extract the remaining oil according to the distribution of the remaining oil in the oil layer, as shown in Fig. 3.
  • the horizontal well group the horizontal well a is injected into the profile control agent, the horizontal well b is used as the injection well, and the horizontal well c is used as the production well, and the remaining oil at the horizontal well a is produced.
  • the horizontal well c is injected into the profile control agent, the horizontal well a is changed to the injection well, the horizontal well d is changed to the oil well, and the remaining oil at the horizontal well c is recovered.
  • the remaining oil at each horizontal well is produced by alternating interchange of horizontal well functions.

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  • 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)
  • Railway Tracks (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

La présente invention concerne un procédé d’extraction de pétrole résiduel comprenant l’injection d’un agent de commande de profil par des puits horizontaux afin de bloquer le canal d’injection d’eau des couches de pétrole. Le procédé se sert d’un groupe de puits horizontaux disposés verticalement par rapport à la direction de la conduite d’écoulement principale pour ajouter un agent de commande de profil afin d’arrêter la canal d’injection d’eau dans les réseaux de remplissage et d’exploitation d’une structure géologique plane contenant du pétrole. Une fois que le canal d’eau initial est rempli avec l’agent de commande de profil horizontal, l’eau est forcée de changer sa direction afin d’évacuer le pétrole résiduel destiné à être exploité par des puits de production inférieurs.
PCT/CN2006/001678 2005-07-14 2006-07-14 Procédé d’extraction de pétrole résiduel se servant de puits horizontaux pour injecter un agent de commande de profil afin de bloquer le canal d’injection d’eau du réservoir de pétrole WO2007006239A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2005100101910A CN100467826C (zh) 2005-07-14 2005-07-14 水平井注调剖剂封堵油层注水道开采剩余油的方法
CN200510010191.0 2005-07-14

Publications (1)

Publication Number Publication Date
WO2007006239A1 true WO2007006239A1 (fr) 2007-01-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001678 WO2007006239A1 (fr) 2005-07-14 2006-07-14 Procédé d’extraction de pétrole résiduel se servant de puits horizontaux pour injecter un agent de commande de profil afin de bloquer le canal d’injection d’eau du réservoir de pétrole

Country Status (2)

Country Link
CN (1) CN100467826C (fr)
WO (1) WO2007006239A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113309500A (zh) * 2020-02-26 2021-08-27 中国石油化工股份有限公司 一种塔河碳酸盐油藏注水井组流道调整方法
CN113309505A (zh) * 2020-02-26 2021-08-27 中国石油化工股份有限公司 一种风化壳岩溶油藏注水井流道调整方法
CN114592837A (zh) * 2020-12-04 2022-06-07 中国石油天然气股份有限公司 针对水平井排状正对注采井网的高含水期注采调整方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102364041B (zh) * 2011-10-26 2014-03-26 王胜存 水平井压裂缝填充孚盛砂建立透油阻水筛的采油方法
US8910712B2 (en) * 2011-10-31 2014-12-16 Chevron U.S.A. Inc. System and method for converting class II hydrate reservoirs
CN106401480A (zh) * 2016-11-29 2017-02-15 中国石油天然气股份有限公司 水平打孔与调剖封堵组合工艺
CN106894800B (zh) * 2017-02-23 2019-05-21 中国海洋石油集团有限公司 一种适用于海上稠油油藏的调剖选井决策方法
CN109162685B (zh) * 2018-07-25 2021-11-30 中国石油天然气股份有限公司 顶水油砂的开采方法
CN109339753A (zh) * 2018-09-14 2019-02-15 山东石大油田技术服务股份有限公司 一种采用定向侧钻调整注水井靶点位置重塑井网的方法
CN110485974A (zh) * 2019-04-19 2019-11-22 中国石油天然气股份有限公司 一种注水井调剖方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129182A (en) * 1977-02-28 1978-12-12 Standard Oil Company (Indiana) Miscible drive in heterogeneous reservoirs
US4299284A (en) * 1979-12-05 1981-11-10 Texaco Inc. High sweep efficiency enhanced oil recovery process
US5320170A (en) * 1992-07-30 1994-06-14 Texaco Inc. Oil recovery process employing horizontal and vertical wells in a modified inverted 5-spot pattern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129182A (en) * 1977-02-28 1978-12-12 Standard Oil Company (Indiana) Miscible drive in heterogeneous reservoirs
US4299284A (en) * 1979-12-05 1981-11-10 Texaco Inc. High sweep efficiency enhanced oil recovery process
US5320170A (en) * 1992-07-30 1994-06-14 Texaco Inc. Oil recovery process employing horizontal and vertical wells in a modified inverted 5-spot pattern

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113309500A (zh) * 2020-02-26 2021-08-27 中国石油化工股份有限公司 一种塔河碳酸盐油藏注水井组流道调整方法
CN113309505A (zh) * 2020-02-26 2021-08-27 中国石油化工股份有限公司 一种风化壳岩溶油藏注水井流道调整方法
CN113309500B (zh) * 2020-02-26 2022-10-04 中国石油化工股份有限公司 一种塔河碳酸盐油藏注水井组流道调整方法
CN113309505B (zh) * 2020-02-26 2022-10-04 中国石油化工股份有限公司 一种风化壳岩溶油藏注水井流道调整方法
CN114592837A (zh) * 2020-12-04 2022-06-07 中国石油天然气股份有限公司 针对水平井排状正对注采井网的高含水期注采调整方法
CN114592837B (zh) * 2020-12-04 2024-04-30 中国石油天然气股份有限公司 针对水平井排状正对注采井网的高含水期注采调整方法

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Publication number Publication date
CN1743641A (zh) 2006-03-08
CN100467826C (zh) 2009-03-11

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