Reference | 0400250 |
Date | 4/14/2016 |
Location | Africa |
Scope | The company plans to carry out Gravel and Frac Pack Pumping Services on its offshore exploration, appraisal, and production location(s) in the JV acreages. Anticipated contract term is two (2) years with an additional one (1) year option period. Contract commencement is expected in the second (2nd) quarter of 2017. An open competitive tendering process through the the company portal will be adopted and a contract will be awarded to more than one bidder at the lowest responsive evaluated price/rates. Tenderer(s) will be required to provide Gravel & Frac Pack Pumping tools, personnel and associated services. The scope of work shall involve provision of personnel, equipment, materials and services for gravel packing services on low pressure (<5000 psi surface working pressure) and high pressure (>5000 psi surface working pressure) wells located on fixed platforms (water depth between 100-300ft MSL). The gravel packing services will be required for all deviated wells (<75 degrees) well as the primary means of sand control. Pumping services for all the wells will be required to assist with stimulations (acid, solvent), offline well kill operation and well under balanced fluid displacements for well kick off. Services required will include engineering pre-job design and fluid and core return permeability testing, procurement of materials, execution of high rate water packs, viscous slurry / gel packs, frac packs, acid stimulations, with both gel and foam diverters, solvent treatment, offline well kills and under balance displacements. Equipment / consumables requirements for the gravel pack operations, includes high power pumps capable of pumping up to 12 BPM slurry of 6PPA concentration, blenders, storage tanks, high pressure flexible pipes, flow-meters, flow back tanks, hard pipe etc. Consumables includes gravel pack sand, gravel pack carrier fluid and all additives necessary to make the carrier fluid such as acid, solvent and foam etc. Adequate equipment shall include back-up equipment for use during periods of scheduled and unscheduled maintenance. Contractor's staffing plan shall allow for scheduled and unscheduled "time off" without affecting ongoing services for Company. Contractor's responsibilities include: i. Project Coordination (including Project Management and Job Planning System). ii. Onsite Supervision including but not limited to: a. Liaison with all affected Rig and Platform personnel as appropriate. b. Coordination of all services supplied. c. Equipment rig up, test and operation. d. Provision of well-site data as requested by Company's representative(s). e. Preparation and distribution of detailed end of well reports. iii. Technical support including but not limited to: a. Ensuring all equipment is suitable in design and condition for the anticipated well conditions. b. Provide load bearing/ tube movement calculations. c. Fluid compatibility and return permeability testing d. Gravel pack sand calculations e. Detailed job procedure / technical specifications of all the equipment. f. Work planning and execution. g. Rig and Platform Surveys to establish equipment needs equipment layout and utility requirements. iv. Perform the Work according to the SHE Management System in place for the Nigerian government and/or the company. v. Perform the Work according to the requirements of the approved Quality Management System. The work will be performed on up to three (3) Jack-Up drilling / workover rigs operating in offshore the country. The Company's wells are drilled up to a depth of 16,000ftMD (most wells are below 12,000ftMD) and completed in unconsolidated multi-darcy formations that range in a pressure/temperature of 1500 psi / 140 deg Fahrenheit to 8000 psi / 275 degrees Fahrenheit. The majority of the formations produce relatively benign fluids (standard temperature and pressure with no CO2 or H2S) with the exception of the OSO condensate reservoir that is HPHT and contains CO2. Maximum anticipated production rate is approximately 15,000 BOPD. The wells are drilled with both Water Based Fluids (WBF) and Non Aqueous Fluids (NAF). Majority of wells require deviated trajectories (including horizontal) to intersect the objective zones. Typical wells will consist of the following: - 30" Casing driven in place. - 20" Casing at the 26" hole TD (drilled with salt water and gel sweeps). - 3-3/8" Casing at the 17-1/2" hole TD (drilled with Water Based Mud or Non Aqueous Fluid). - 9-5/8" Casing at the 12-1/4" hole TD (drilled with Non Aqueous Fluid). - 7" Casing or Liner at the 8-1/2" hole TD (drilled with Non Aqueous Fluid). - Some wells may require additional Casing such as 5". - 2 7/8" - 5 ½" Tubing. |