# US 2021/0277747 A1 · Aggregate Multi-Lateral Maximum Reservoir Contact Well and System for Producing Multiple Reservoirs Through a Single Production String > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0277747 A1 - Document ID: US20210277747A1 - Status: Published application - Kind: A1 - Application number: 16/807,277 - Filed: 2020-03-03 - Published: 2021-09-09 - Earliest claimed: 2020-03-03 - Assignees: Saudi Arabian Oil Company - Applicants: Saudi Arabian Oil Company - Inventors: Khalid M. Al Naimi; Ali M. Al Shahri; Mohammed A. Al Mansouri; Anas A. Al Shuaibi; Mishaal S. Al Harbi; Mohammed S. Kanfar - Web page: https://patentgrep.com/patent/US20210277747A1 ## CPC - E21B 41/0035: {Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches} - E21B 34/16: Control means therefor being outside the borehole {(control systems for submerged well heads E21B33/0355)} - E21B 43/14: Obtaining from a multiple-zone well - E21B 43/305: {comprising at least one inclined or horizontal well} - E21B 47/06: Measuring temperature or pressure - E21B 47/10: Locating fluid leaks, intrusions or movements - E21B 47/11: using tracers; using radioactivity - E21B 33/12: Packers; Plugs (used for cementing E21B33/134, E21B33/16) - E21B 34/06: in wells - E21B 2200/02: Down-hole chokes or valves for variably regulating fluid flow - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract An aggregate MRC well and method for extracting hydrocarbons from one or multiple subsurface formations are disclosed. The aggregate MRC well includes a plurality of maximum reservoir contact (MRC) wells, a plurality of independently operated flow control or completion units installed in each of the plurality of MRC wells or laterals, a plurality of pressure regimes corresponding to the plurality of MRC wells or laterals, and a single production string connecting each of the plurality of MRC wells or laterals. The method includes providing a plurality of maximum reservoir contact (MRC) wells forming an aggregate MRC well, providing a plurality of independently operated flow control valves in each of the plurality of MRC wells or laterals, providing a plurality of pressure regimes corresponding to the plurality of MRC wells or laterals, and providing a single production string connecting each of the plurality of MRC wells or laterals. ## Claims ### Claim 1 An aggregate maximum reservoir contact (MRC) well for extracting hydrocarbons from one or multiple subsurface formations, the aggregate MRC well comprising: a plurality of maximum reservoir contact (MRC) wells or laterals; a plurality of independently operated flow completion units installed in each of the plurality of MRC wells or laterals; a plurality of pressure regimes corresponding to the plurality of MRC laterals; and a single production string connecting each of the plurality of MRC wells or laterals. ### Claim 2 (depends on 1) The aggregate MRC well according to claim 1, further comprising: means for determining productivity index of each of the plurality of MRC wells and laterals. ### Claim 3 (depends on 2) The aggregate MRC well according to claim 2, wherein the means comprises one or more pressure sensors installed at each of the plurality of MRC wells or laterals. ### Claim 4 (depends on 3) The aggregate MRC well according to claim 3, wherein the means further comprises one or more chemical tracers installed at each of the plurality of MRC wells or laterals. ### Claim 5 (depends on 1) The aggregate MRC well according to claim 1, further comprising: means for determining flow rate or production rate of each of the MRC wells or laterals. ### Claim 6 (depends on 5) The aggregate MRC well according to claim 5, wherein the means comprises one or more flow rate sensors installed at each of the plurality of MRC wells or laterals. ### Claim 7 (depends on 1) The aggregate MRC well according to claim 1, wherein the aggregate MRC well has a contact of about 10 kilometers (6.21 miles) or more. ### Claim 8 (depends on 1) The aggregate MRC well according to claim 1, wherein the aggregate MRC well comprises a multilateral configuration comprising two or more laterals, each lateral well comprising a plurality of MRC wells or laterals. ### Claim 9 A method for extracting hydrocarbons from a subsurface formation, the method comprising: providing a plurality of maximum reservoir contact (MRC) wells forming an aggregate MRC well; providing a plurality of independently operated flow completion units in each of the plurality of MRC wells or laterals; providing a plurality of pressure regimes corresponding to the plurality of MRC wells or laterals; and providing a single production string connecting each of the plurality of MRC wells or laterals. ### Claim 10 (depends on 9) The method according to claim 9, further comprising: providing a means for determining productivity index of each of the plurality of MRC wells or laterals. ### Claim 11 (depends on 10) The method according to claim 10, wherein the means comprises one or more pressure sensors installed at each of the plurality of MRC wells or laterals. ### Claim 12 (depends on 11) The method according to claim 11, wherein the means further comprises one or more chemical tracers installed at each of the plurality of MRC wells or laterals. ### Claim 13 (depends on 9) The method according to claim 9, further comprising: providing a means for determining flow rate or production rate of each of the MRC wells or laterals. ### Claim 14 (depends on 13) The method according to claim 13, wherein the means comprises one or more flow rate sensors installed at each of the plurality of MRC wells or laterals. ### Claim 15 (depends on 9) The method according to claim 9, wherein the aggregate MRC well has a contact of about 10 kilometers (6.21 miles) or more. ### Claim 16 (depends on 9) The method according to claim 9, wherein the aggregate MRC well comprises a multilateral configuration comprising two or more lateral wells, each lateral well comprising a plurality of MRC wells or laterals.