05-11-15 Regular Meeting of La Porte City Council

Browse Search

60 days after completion of the well. All drilling mud must be removed from the earthen pit prior to backfilling. (Ord. No. 1659, § 1(16-12), 8-14-89) Sec. 102-186. - Casing. All casing, including surface protection and production strings, shall be new seamless steel, or equivalent quality oil well casing. Each joint and length of each particular casing string shall have, prior to setting, unconditionally passed a hydraulic test to ensure physical integrity at design working pressure. (Ord. No. 1659, § 1(16-13), 8-14-89) Sec. 102-187. - Setting and cementing casing. No well shall be drilled within the city limits without properly setting surface casing to a depth as approved by the state department of water resources. The surface casing must be driven or cemented by the pump and plug method. All other casing strings must be cemented by the pump and plug method with sufficient cement to completely fill all of annular space behind the casing string to the surface. No well shall be drilled within the city limits without properly setting surface casing a depth sufficient to protect producing fresh water sands. (Ord. No. 1659, § 1(16-14), 8-14-89) Sec. 102-188. - Valves and blowout preventers. No well shall be drilled within the city limits without equipping the intermediate protective casing with at least one master valve and one fluid-operated ram type blowout preventer with mechanical operating backup; and without properly equipping the production casing during completion operations and workover operations with at least one master valve and at least one fluid-operated ram type blowout preventer. Each blowout preventer shall test 5,000 pounds, and its mechanical operation shall be tested daily. All control equipment shall be in good working condition and order at all times. (Ord. No. 1659, § 1(16-15), 8-14-89) Sec. 102-189. - Drilling fluid. No well shall be drilled within the city limits without using mud as the drilling fluid after the setting of surface casing as provided in section 102-187. The weight of the mud laden drilling fluid shall be at all times maintained at such weight as will provide a hydrostatic head of not less than 500 pounds per square inch in excess of the formation encountered by the well. In reworking a well, a drilling fluid shall be at all times maintained at such weight as will provide a hydrostatic head of not less than 500 pounds per square inch in excess of the pressure, of the formation penetrated by the well and open for production. (Ord. No. 1659, § 1(16-16), 8-14-89) Sec. 102-190. - Drill stem tests. It shall be unlawful and an offense for any person in connection with the drilling or reworking operations of any well within the city limits to take and to complete any drill stem test except during daylight hours, and then only if the well effluent during the test is produced through an adequate oil and gas separator to storage tanks, and the effluent remaining in the drill pipe at the time the tool is closed is flushed to the surface by circulating drilling fluid down the annulus and up the drill pipe. (Ord. No. 1659, § 1(16-17), 8-14-89) Sec. 102-191. - Bradenhead. Each well drilled within the city limits shall be equipped with a bradenhead with a working pressure of not less than 3,000 pounds per square inch. Bradenheads shall be cast iron steel premanufactured and Page 9